<template>
	<view>
		<view class="uni-header">
			<uni-breadcrumb separator="/">
				<uni-breadcrumb-item v-for="(route,index) in routes" :key="index" :to="route.to">
					{{route.name}}
				</uni-breadcrumb-item>
			</uni-breadcrumb>
			<view class="uni-group">
				<view class="uni-title"></view>
				<view class="uni-sub-title"></view>
			</view>
			<view class="uni-group">
				<input class="uni-search" type="text" v-model="query" @confirm="search" placeholder="请输入搜索内容" />
				<button class="uni-button" type="default" size="mini" @click="search">搜索</button>
				<button class="uni-button" type="default" size="mini" @click="navigateTo('./add')">新增</button>
				<button class="uni-button" type="default" size="mini" :disabled="!selectedIndexs.length"
					@click="delTable">批量删除</button>
				<download-excel class="hide-on-phone" :fields="exportExcel.fields" :data="exportExcelData"
					:type="exportExcel.type" :name="exportExcel.filename">
					<button class="uni-button" type="primary" size="mini">导出 Excel</button>
				</download-excel>
			</view>
		</view>
		<view class="uni-container">
			<unicloud-db ref="udb" :collection="collectionList"
				field="title,abstract,content,images,targetSend,type,shop_id,is_forced_reading,platform_type,create_date" :where="where"
				page-data="replace" :orderby="orderby" :getcount="true" :page-size="options.pageSize"
				:page-current="options.pageCurrent" v-slot:default="{data,pagination,loading,error,options}"
				:options="options" loadtime="manual" @load="onqueryload"
			>
				<uni-table ref="table" :loading="loading" :emptyText="error.message || '没有更多数据'" border stripe
					type="selection" @selection-change="selectionChange">
					<uni-tr>
						<uni-th align="center" width="200" >公告主图</uni-th>
						<uni-th align="center" width="300" >公告标题</uni-th>
						<uni-th align="center" width="200" >公告摘要</uni-th>
						<uni-th align="center" width="100" >公告内容</uni-th>
						<uni-th align="center" width="130" filter-type="select" :filter-data="optionType" @filter-change="onFilter( $event ,'type')"   >
							公告类型
						</uni-th>
						<uni-th align="center" width="100">筛选分发</uni-th>
						<uni-th align="center" width="250" filter-type="date" @filter-change="filterChange($event, 'create_date')"
							sortable @sort-change="sortChange($event, 'create_date')">
							创建时间
						</uni-th>
						<uni-th align="center" width="200">操作</uni-th>
					</uni-tr>
					<uni-tr v-for="(item,index) in data" :key="index">
						<uni-td align="center">
							<view class="titleApp">
								<image v-if="item.images" :src="item.images[0].url" mode="heightFix" style="height:50px" ></image>
							</view>
						</uni-td>
						<uni-td align="center">
							<view class="titleApp pages_content"  >
								{{item.title}}
							</view>
						</uni-td>
						<uni-td align="center">
							<view class="pages_content" style="width:200px">
								{{item.abstract}}
							</view>
						</uni-td>
						<uni-td align="center">
							<view class="pages_content" style="width:200px">
								{{item.content}}
							</view>
						</uni-td>
						<uni-td align="center">
							{{item.type?item.type.name:'暂无'}}
						</uni-td>
						<uni-td align="center">
							{{item.targetSend?item.targetSend.platform:'暂无'}}
						</uni-td>
						<uni-td align="center">
							<uni-dateformat :date="item.create_date" format="yyyy年MM月dd日 hh:mm" ></uni-dateformat>
						</uni-td>
						<uni-td align="center">
							<view class="uni-group">
								<button @click="navigateTo('./edit?id='+item._id, false)" class="uni-button" size="mini"
									type="primary">修改</button>
								<button @click="confirmDelete(item._id,item)" class="uni-button" size="mini" type="warn">删除</button>
							</view>
						</uni-td>
					</uni-tr>
				</uni-table>
				<view class="uni-pagination-box">
					<uni-pagination show-icon :page-size="pagination.size" v-model="pagination.current"
						:total="pagination.count" @change="onPageChanged" />
				</view>
			</unicloud-db>
		</view>
	</view>
</template>

<script>
	import Util from "@/js_sdk/validator/util.js"
	import {
		enumConverter,
		filterToWhere
	} from '@/js_sdk/validator/notice.js';
	
	const db = uniCloud.database()
	const global = uniCloud.importObject("global",{customUI:true})
	// 表查询配置
	const dbOrderBy = 'create_date desc' // 排序字段
	const dbSearchFields = [] // 模糊搜索字段，支持模糊搜索的字段列表。联表查询格式: 主表字段名.副表字段名，例如用户表关联角色表 role.role_name
	// 分页配置
	const pageSize = 20
	const pageCurrent = 1

	const orderByMapping = {
		"ascending": "asc",
		"descending": "desc"
	}
	export default {
		data() {
			return {
				routes: [
					{to: "/pages/index/index",name: "首页",},
					{to: "",name: "通知管理" },
					{to: "",name: "用户通知" },
				],
				collectionList: "notice",
				query: '',
				where:{
					 "platform_type":'__UNI__8A62930',
					$or:[
						{ }
					]
				},
				optionType:[
					{
							value: 1,
							text: '活动公告',
						},
						{
							value: 2,
							text: '温馨提示'
						}
				],
				orderby: dbOrderBy,
				orderByFieldName: "",
				selectedIndexs: [],
				options: {
					pageSize,
					pageCurrent,
					filterData: {},
					...enumConverter
				},
				imageStyles: {
					width: 64,
					height: 64
				},
				exportExcel: {
					"filename": "notice.xls",
					"type": "xls",
					"fields": {
						"公告标题": "title",
						"公告摘要": "abstract",
						"公告内容": "content",
						"公告类型": "type",
						"create_date": "create_date"
					}
				},
				exportExcelData: []
			}
		},
		onLoad() {
			this._filter = {}
		},
		onReady() {
			this.$refs.udb.loadData()
		},
		methods: {
			// Where 筛选
			onFilter(event, filter) {
				event.filter = event.filter.length === 0 ? [''] : event.filter
				let result = filterToWhere(event.filter, filter)
				this.where.$or = [...result]
				// console.log(this.where)
				this.$nextTick(() => {
					this.$refs.udb.loadData()
				})
			},
			onqueryload(data) {
				// console.log(data);
				this.exportExcelData = data
			},
			getWhere() {
				const query = this.query.trim()
				if (!query) {
					return ''
				}
				const queryRe = new RegExp(query, 'i')
				return dbSearchFields.map(name => queryRe + '.test(' + name + ')').join(' || ')
			},
			search() {
				const newWhere = this.getWhere()
				this.where = newWhere
				this.$nextTick(() => {
					this.loadData()
				})
			},
			loadData(clear = true) {
				this.$refs.udb.loadData({
					clear
				})
			},
			onPageChanged(e) {
				this.selectedIndexs.length = 0
				this.$refs.table.clearSelection()
				this.$refs.udb.loadData({
					current: e.current
				})
			},
			navigateTo(url, clear) {
				// clear 表示刷新列表时是否清除页码，true 表示刷新并回到列表第 1 页，默认为 true
				uni.navigateTo({
					url,
					events: {
						refreshData: () => {
							this.loadData(clear)
						}
					}
				})
			},
			// 多选处理
			selectedItems() {
				var dataList = this.$refs.udb.dataList
				return this.selectedIndexs.map(i => dataList[i]._id)
			},
			// 批量删除
			delTable() {
				this.$refs.udb.remove(this.selectedItems(), {
					success: (res) => {
						this.$refs.table.clearSelection()
					}
				})
			},
			// 重构分类
			initPlatformType(type){
				switch (type) {
					case 1 : 
						return '易派到家'
						break;
					case 2 :
						return '易派商家'
						break;
					case 3 :
						return '易派骑手'
						break;
					case 4 :
						return '后台管理'
						break;
					default:
						return '未知'
				}
			},
			// 多选
			selectionChange(e) {
				this.selectedIndexs = e.detail.index
			},
			confirmDelete(id,item) {
				this.$refs.udb.remove(id, {
					success: (res) => {
						if (item.images) {
							let images = item.images.map(item => {
								return item.fileID
							})
							global.deleteFileByUniCloud(images)
						}
						this.$refs.table.clearSelection()
					}
				})
			},
			sortChange(e, name) {
				this.orderByFieldName = name;
				if (e.order) {
					this.orderby = name + ' ' + orderByMapping[e.order]
				} else {
					this.orderby = ''
				}
				this.$refs.table.clearSelection()
				this.$nextTick(() => {
					this.$refs.udb.loadData()
				})
			},
			filterChange(e, name) {
				this._filter[name] = {
					type: e.filterType,
					value: e.filter
				}
				let newWhere = filterToWhere(this._filter, db.command)
				if (Object.keys(newWhere).length) {
					this.where = newWhere
				} else {
					this.where = ''
				}
				this.$nextTick(() => {
					this.$refs.udb.loadData()
				})
			}
		}
	}
</script>

<style>
</style>